Sunday Ezeilo
Senior Backend Engineer at Partna (YC W22)
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolSunday Ezeilo is a Senior Backend Engineer based in London with 6–7 years of hands-on experience building high-throughput, resilient payment and onboarding systems. At Partna (YC W22) he scaled platform throughput 3×, cut P99 latency by 80%, and raised payment success to 99.3% through provider failover and duplicate-safe processing. He designs reliable event-driven APIs and webhooks, has driven observability and testing improvements that reduced MTTR to minutes and test suites from 10 minutes to 30 seconds, and champions clear service boundaries to speed onboarding. Technically fluent in Go, TypeScript/Node.js, PostgreSQL, MongoDB, Redis, Kafka/RabbitMQ and AWS, he balances performance optimization with cost reduction. Previously he built biometric and IoT integrations in academia, showing a knack for hardware-software projects alongside large-scale backend work. Known for mentoring peers and codifying architecture standards, he partners closely with product and design to reduce integration friction and deliver measurable business outcomes.
6 years of coding experience
4 years of employment as a software developer
Bachelor of Engineering - BEng, Electrical and Electronics Engineering, Bachelor of Engineering - BEng, Electrical and Electronics Engineering at Modibbo Adama University of TechnologyImagine Job Booster, Career Coaching and Development Program, Imagine Job Booster, Career Coaching and Development Program at Imagine Foundation e.V.
English, Igbo
Stackoverflow
301reputation
12kreached
1answer
13questions
Github Skills (48)
rental9
social-media8
capstone8
activerecord6
firebase6
flutter6
chat6
aggregation-framework6
has-many-through6
go6
android6
lifestyle6
endpoints6
enumerable6
associations6
Programming languages (6)
Github contributions (5)
ezeilo-su/js-weather-app
Dec 2020 - Feb 2021
Weather App using JavaScript
Contributions:34 commits, 6 PRs, 32 pushes in 2 months
javascriptweather-app
ezeilo-su/html-css-capstone
Apr 2020 - Feb 2021
HTML & CSS Capstone Project for Microverse Program
Contributions:4 PRs, 84 pushes, 9 branches in 10 months
capstonecssjavascriptmicroversehtml5
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